A relay is an electromagnetic switch that allows a small amount of current to control:?
A. ?A large voltage
B. Alarge current
C. ?A small voltage
D. ?A large resistance
Answer: B
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Starters, contactors, and ____ are similar in construction and operation.
a. mechanical thermostats b. symbols c. breakers d. relays
All overload relays contain two separate sections, the ____ section and the control contact section.
A. voltage-sensing B. voltage-modulating C. current-sensing D. resistance-modulating
After two unsuccessful attempts to invade and conquer Russia, Charles XII of Sweden died fighting to conquer which other neighboring region?
a. Denmark b. Prussia c. Estonia d. Norway
A driver of a vehicle equipped with a rack and pinion steering gear complains that the steering wheel jerks whenever the vehicle is being driven into a curbed driveway. Technician A says that the rack and pinion gears may have too little clearance between the teeth of the gears. Technician B says that a lack of lubrication of the rack and pinion is the most likely cause. Which technician is
correct? A) Technician A only B) Technician B only C) Both technicians D) Neither technician